• Promote buf beta lsp to buf lsp serve. Command buf beta lsp is now deprecated.
• Add textDocument/References support for buf lsp serve.
• Add autocompletion for basic keywords, syntax, package and imports for buf lsp serve.
• Add workspace symbol queries for buf lsp serve.
• Fix positional encoding for diagnostics in buf lsp serve.
• Fix format updates for buf lsp serve.
• Fix syntax highlighting on semantic tokens for buf lsp serve.
• Fix buf format to remove extraneous whitespace before the first header node (syntax/package
  declarations).